JPMorgan Ultra-Short Municipal Income ETF
JMST
560 hedge funds and large institutions have $3.57B invested in JPMorgan Ultra-Short Municipal Income ETF in 2026 Q2 according to their latest regulatory filings, with 42 funds opening new positions, 252 increasing their positions, 190 reducing their positions, and 29 closing their positions.
45% more first-time investments, than exits
New positions opened: 42 | Existing positions closed: 29
33% more repeat investments, than reductions
Existing positions increased: 252 | Existing positions reduced: 190
3% more capital invested
Capital invested by funds: $3.48B → $3.57B (+$95.8M)
1% more funds holding
Funds holding: 556 → 560 (+4)
2.16% less ownership
Funds ownership: 55.74% → 53.59% (-2.2%)
29% less funds holding in top 10
Funds holding in top 10: 21 → 15 (-6)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
B
Bailard
Foster City,
California
|
+$41.3M |
| 2 |
HWM
HB Wealth Management
Atlanta,
Georgia
|
+$36.5M |
| 3 |
Bank of America
Charlotte,
North Carolina
|
+$22.1M |
| 4 |
Bank of New York Mellon
New York
|
+$15.3M |
| 5 |
JP Morgan Chase
New York
|
+$10.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OA
Oasis Advisors
Forest City,
Iowa
|
-$69.5M |
| 2 |
NP
NorthRock Partners
Minneapolis,
Minnesota
|
-$42.2M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$23.9M |
| 4 |
Mariner
Overland Park,
Kansas
|
-$13.9M |
| 5 |
Corient Private Wealth
Miami,
Florida
|
-$12.4M |
JMST Hedge Fund Activity: Q2 2026 in Review
560 of the 8,287 institutional investors tracked by Wall St. Rank reported a position in JPMorgan Ultra-Short Municipal Income ETF (JMST) for Q2 2026, worth a combined $3.57B — up 2.8% from $3.48B a quarter earlier.
Buyers outnumbered sellers: 42 funds opened new JMST positions and 29 closed out — a net gain of 13 holders — while 252 added to existing stakes and 190 trimmed.
The largest buyer was Bailard, adding an estimated $41.3M. The largest seller was Oasis Advisors, cutting an estimated $69.5M.
- 560 institutional investors held JPMorgan Ultra-Short Municipal Income ETF (JMST) as of Q2 2026, up from 556 in Q1 2026.
- Funds reported $3.57B of JPMorgan Ultra-Short Municipal Income ETF stock for Q2 2026, up 2.8% quarter-over-quarter.
- 42 funds opened new JPMorgan Ultra-Short Municipal Income ETF positions in Q2 2026 and 29 closed out, a net change of +13 holders.
- The largest JPMorgan Ultra-Short Municipal Income ETF buyer in Q2 2026 was Bailard, an estimated $41.3M added.
- The largest JPMorgan Ultra-Short Municipal Income ETF seller in Q2 2026 was Oasis Advisors, an estimated $69.5M sold.
Based on aggregated 13F filings for Q2 2026.